Dec. 30, 2012: Team Alex Smith shows up in the first quarter of the San Francisco 49ers game against the Arizona Cardinals at Candlestick Park.

Dec. 30, 2012: Team Alex Smith shows up in the first quarter of the San Francisco 49ers game against the Arizona Cardinals at Candlestick Park.

Photo: Carlos Avila Gonzalez, The Chronicle

Dec. 30, 2012: Team Alex Smith shows up in the first quarter of the... Photo-4009531.57601 - SFGate

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Quarterbacks Colin Kaepernick (7) and Alex Smith (11) of the San Francisco 49ers take warm ups before their game against the Miami Dolphins at Candlestick Park on December 9, 2012 in San Francisco, California.

Quarterbacks Colin Kaepernick (7) and Alex Smith (11) of the San Francisco 49ers take warm ups before their game against the Miami Dolphins at Candlestick Park on December 9, 2012 in San Francisco, California.

Quarterback Colin Kaepernick (7) talks with coach Jim Harbaugh as Quarterback Alex Smith (11) listens in form the sidelines during the San Francisco 49ers game against the Chicago Bears at Candlestick Park in San Francisco, Calif., on Sunday November 19, 2012. less

Quarterback Colin Kaepernick (7) talks with coach Jim Harbaugh as Quarterback Alex Smith (11) listens in form the sidelines during the San Francisco 49ers game against the Chicago Bears at Candlestick Park in ... more

San Francisco 49ers quarterback Alex Smith (11) is tackled by St. Louis Rams linebacker Jo-Lonn Dunbar (58) on a four-yard gain during the first quarter of an NFL football game, Sunday, Nov. 11, 2012, in San Francisco. Smith had a concussion from the play. less

San Francisco 49ers quarterback Alex Smith (11) is tackled by St. Louis Rams linebacker Jo-Lonn Dunbar (58) on a four-yard gain during the first quarter of an NFL football game, Sunday, Nov. 11, 2012, in San ... more

San Francisco 49ers quarterback Alex Smith (11) thows a pass away from New York Jets' Yeremiah Bell (37) as teammate Kendall Hunter (32) blocks during the second half of an NFL football game Sunday, Sept. 30, 2012, in East Rutherford, N.J. the 49ers won the game 34-0. less

San Francisco 49ers quarterback Alex Smith (11) thows a pass away from New York Jets' Yeremiah Bell (37) as teammate Kendall Hunter (32) blocks during the second half of an NFL football game Sunday, Sept. 30, ... more

Quarterback Alex Smith (11) on the side lines talks with coach Jim Harbaugh during the second quarter of the San Francisco 49ers game against the St. Louis Rams at Candlestick Park in San Francisco, Calif., on Sunday November 11, 2012. less

Quarterback Alex Smith (11) on the side lines talks with coach Jim Harbaugh during the second quarter of the San Francisco 49ers game against the St. Louis Rams at Candlestick Park in San Francisco, Calif., on ... more

San Francisco 49ers quarterback Alex Smith (11) is sacked by New York Giants defensive tackle Linval Joseph, hidden, as outside linebacker Mathias Kiwanuka (94) converges during the third quarter of an NFL football game in San Francisco, Sunday, Oct. 14, 2012. less

San Francisco 49ers quarterback Alex Smith (11) is sacked by New York Giants defensive tackle Linval Joseph, hidden, as outside linebacker Mathias Kiwanuka (94) converges during the third quarter of an NFL ... more

San Francisco quarter back Alex Smith throws downfield during the first half of the San Francisco 49ers home opener against the Detroit Lions at Candlestick Park in San Francisco, Calif., on Sunday September 16, 2012. less

San Francisco quarter back Alex Smith throws downfield during the first half of the San Francisco 49ers home opener against the Detroit Lions at Candlestick Park in San Francisco, Calif., on Sunday September ... more

Quarterbacks Alex Smith (11) and Colin Kaepernick (7) of the San Francisco 49ers prepare to take the field for the start of the NFC Divisional playoff game against the New Orleans Saints at Candlestick Park on January 14, 2012 in San Francisco, California. less

Quarterbacks Alex Smith (11) and Colin Kaepernick (7) of the San Francisco 49ers prepare to take the field for the start of the NFC Divisional playoff game against the New Orleans Saints at Candlestick Park on ... more

Vernon Davis (85) of the San Francisco 49ers reacts with Alex Smith #11 after his touchdown in the fourth quarter of the NFC Divisional playoff game against the New Orleans Saints at Candlestick Park on January 14, 2012 in San Francisco, California. less

Vernon Davis (85) of the San Francisco 49ers reacts with Alex Smith #11 after his touchdown in the fourth quarter of the NFC Divisional playoff game against the New Orleans Saints at Candlestick Park on January ... more

49ers Alex Smith runs into the endzone, on his fourth quarter touchdown, as the San Francisco 49ers go on to beat the New Orleans Saints 36-32, in the NFC divisional playoffs, on Saturday Jan. 14, 2012, in San Francisco. less

49ers Alex Smith runs into the endzone, on his fourth quarter touchdown, as the San Francisco 49ers go on to beat the New Orleans Saints 36-32, in the NFC divisional playoffs, on Saturday Jan. 14, 2012, in San ... more

Drew Brees (9) of the New Orleans Saints talks to Alex Smith #11 of the San Francisco 49ers after their NFC Divisional playoff game at Candlestick Park on January 14, 2012 in San Francisco, California.

Drew Brees (9) of the New Orleans Saints talks to Alex Smith #11 of the San Francisco 49ers after their NFC Divisional playoff game at Candlestick Park on January 14, 2012 in San Francisco, California.

Alex Smith of the San Francisco 49ers runs in for a touchdown in the fourth quarter against the New Orleans Saints during the NFC Divisional playoff game at Candlestick Park on January 14, 2012 in San Francisco, California. less

Alex Smith of the San Francisco 49ers runs in for a touchdown in the fourth quarter against the New Orleans Saints during the NFC Divisional playoff game at Candlestick Park on January 14, 2012 in San ... more

Photo: Jed Jacobsohn, Getty Images

Alex Smith of the San Francisco 49ers runs in for a touchdown in... Photo-2117424.57601 - SFGate

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San Francisco 49ers quarterback Alex Smith throws the ball for a first down against the Tampa Bay Buccaneers, Sunday Oct. 9, 2011, at Candlestick Park in San Francisco, Calif. The 49ers defeated the Buccaneers 48 to 3. less

San Francisco 49ers quarterback Alex Smith throws the ball for a first down against the Tampa Bay Buccaneers, Sunday Oct. 9, 2011, at Candlestick Park in San Francisco, Calif. The 49ers defeated the Buccaneers ... more

Alex Smith walked off the field, perhaps for the last time, at Candlestick Park. The San Francisco 49ers defeated the Arizona Cardinals 38-7. San Francisco 49ers vs. Arizona Cardinals in last game of the regular season at Candlestick Park Sunday January 2, 2011. less

Alex Smith walked off the field, perhaps for the last time, at Candlestick Park. The San Francisco 49ers defeated the Arizona Cardinals 38-7. San Francisco 49ers vs. Arizona Cardinals in last game of the ... more

Photo: Brant Ward, The Chronicle

Alex Smith walked off the field, perhaps for the last time, at... Photo-1907292.57601 - SFGate

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Alex Smith is winning over the 49er fans. The San Francisco 49ers defeated the Cleveland Browns 20-10 at Candlestick Park Sunday October 30, 2011.

Alex Smith is winning over the 49er fans. The San Francisco 49ers defeated the Cleveland Browns 20-10 at Candlestick Park Sunday October 30, 2011.

Photo: Brant Ward, The Chronicle

Alex Smith is winning over the 49er fans. The San Francisco 49ers... Photo-1830195.57601 - SFGate

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San Francisco 49ers quarterback Alex Smith and head coach Mike Singletary have a discussion on the sidelines, during the Philadelphia Eagles game, after Smith's fumble led to an Eagle score.

San Francisco 49ers quarterback Alex Smith and head coach Mike Singletary have a discussion on the sidelines, during the Philadelphia Eagles game, after Smith's fumble led to an Eagle score.

Quarterbacks David Carr (5), Alex Smith (11) and Troy Smith (1) of the San Francisco 49ers walk out onto the field before the NFL game against the Arizona Cardinals at the University of Phoenix Stadium on November 29, 2010 in Glendale, Arizona. less

Quarterbacks David Carr (5), Alex Smith (11) and Troy Smith (1) of the San Francisco 49ers walk out onto the field before the NFL game against the Arizona Cardinals at the University of Phoenix Stadium on ... more

San Francisco 49ers head coach Mike Singletary and quarterback Alex Smith on the sidelines in the game against the Detroit Lions, Sunday Dec. 27, 2009, in San Francisco. I'm confident in Alex. Our coaching staff is confident in Alex,'' said 49ers head coach Mike Singletary (left) of quarterback Alex Smith. less

San Francisco 49ers head coach Mike Singletary and quarterback Alex Smith on the sidelines in the game against the Detroit Lions, Sunday Dec. 27, 2009, in San Francisco. I'm confident in Alex. Our coaching ... more

Quarterback Alex Smith (11), with a sore right shoulder, confers with head coach Mike Nolan during the fourth quarter in Oct. 2007. Mike Nolan let Smith play the entire game with a sore right shoulder. Smith was sacked twice and ran four times. less

Quarterback Alex Smith (11), with a sore right shoulder, confers with head coach Mike Nolan during the fourth quarter in Oct. 2007. Mike Nolan let Smith play the entire game with a sore right shoulder. ... more

San Francisco 49ers quarterback Alex Smith, right, and new offensive coordinator Norv Turner, left, smile during an interview during a mini camp at 49ers headquarters in Santa Clara, Calif., Friday, May 5, 2006. Turner was head coach of the Oakland Raiders last season. less

San Francisco 49ers quarterback Alex Smith, right, and new offensive coordinator Norv Turner, left, smile during an interview during a mini camp at 49ers headquarters in Santa Clara, Calif., Friday, May 5, ... more

Former University of Utah quarterback Alex Smith, the 1st overall pick in the NFL draft, addresses the media as a new member of the San Francisco 49ers in Santa Clara, Calif. in this April 24, 2005 file photo.

Former University of Utah quarterback Alex Smith, the 1st overall pick in the NFL draft, addresses the media as a new member of the San Francisco 49ers in Santa Clara, Calif. in this April 24, 2005 file photo.

Photo: MARCIO JOSE SANCHEZ

Former University of Utah quarterback Alex Smith, the 1st overall... Photo-2092233.57601 - SFGate

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Utah quarterback Alex Smith holds up a San Francisco 49ers jersey after the 49ers selected him as the No. 1 overall pick in the NFL

Utah quarterback Alex Smith holds up a San Francisco 49ers jersey after the 49ers selected him as the No. 1 overall pick in the NFL

Utah quarterback Alex Smith, left, holds up a San Francisco 49ers jersey with NFL commissioner Paul Tagliabue after the 49ers selected him as the No. 1 overall pick in the NFL Draft in New York Saturday, April 23, 2005. less

Utah quarterback Alex Smith, left, holds up a San Francisco 49ers jersey with NFL commissioner Paul Tagliabue after the 49ers selected him as the No. 1 overall pick in the NFL Draft in New York Saturday, April ... more

Alex Smith, left, a quarterback from Utah, pauses before kneeling with Antrel Rolle, a cornerback from Miami, Aaron Rodgers, a quarterback from California, Braylon Edwards, a wide receiver from Michigan, Ronnie Brown, a running back from Auburn, and Cedric Benson, a running back from Texas, attend the NFL draft Saturday, April 23, 2005 in New York. less

Alex Smith, left, a quarterback from Utah, pauses before kneeling with Antrel Rolle, a cornerback from Miami, Aaron Rodgers, a quarterback from California, Braylon Edwards, a wide receiver from Michigan, Ronnie ... more